Coupler fitting for use with LD3, LDPH3 and LDS3 raceway. LD non-metallic single-channel, one-piece design, adhesive-backed, hinged-cover surface raceway, shall be used to route, protect and conceal low-voltage data, voice and video cabling. The raceway will include a full complement of bend radius control (BRC) and standard fittings consisting of, but not limited to: elbows (internal and external), couplings for joining raceway sections, blank end fittings for closing open ends of the raceway, entrance end fittings, reducer fittings and tee fittings. The BRC fittings shall incorporate a minimum 1 inch bend radius, as recommended for Categories 5e, 6, 6A and 6A (SD), UTP and fiber optic cables, in TIA/EIA-568-B. LD raceway will be manufactured in three different lengths from impact-resistant material with flammability rating of V-0. LD raceway finish shall be solid colour, will resist scratches and dents and will not peel or corrode. LD raceway shall be available in three sizes and four standard colours and shall be optimized for use with the Panduit Pan-Net communication system.